Buffer For Faults And Alarms - Siemens SINAMICS S120 Commissioning Manual

Diagnostics
6.3 Fault and alarm messages
Acknowledging faults
The list of faults and alarms specifies how each fault is acknowledged after the cause has been
remedied.
• Acknowledgement of faults by "POWER ON"
– Switch the drive on/off (POWER ON)
– Press the RESET button on the Control Unit
• Acknowledgement of faults by "IMMEDIATE"
– Via a PROFIdrive control signal:
– Via external input signal
• Acknowledge faults with "PULSE INHIBIT"
– The fault can only be acknowledged with a pulse inhibit (r0899.11 = 0).
– The same possibilities are available for acknowledging as described under acknowledge
Note
The drive can only resume operation after all active faults have been acknowledged.
6.3.1

Buffer for faults and alarms

Overview
A fault and alarm buffer is provided for each drive. The drive and device-specific messages are
entered in these buffers. The contents of the fault buffer are saved to non-volatile memory
when the Control Unit is powered down, i.e. the fault buffer history is still available when the
unit is powered up again.
Note
The entry in the fault/alarm buffer is made after a delay. For this reason, the fault/alarm buffer
should not be read until a change in the buffer is also recognized (r0944, r2121) after "Fault
active"/"Alarm active" is output.
334
STW1.7 (reset fault memory): 0/1 edge
Set STW1.0 (ON/OFF1) = "0" and "1"
Binector input and interconnection with digital input
p2103 = "Requested signal source"
p2104 = "Requested signal source"
p2105 = "Requested signal source"
Across all of the drive objects (DO) of a Control Unit
p2102 = "Requested signal source"
IMMEDIATELY.
Commissioning with Startdrive
Commissioning Manual, 06/2020, 6SL3097-5AA10-0BP2